Wolfe is Simmons' fourth child. The former Baby Phat CEO also shares son Kenzo, 5, with actor Djimon Hounsou, and has two daughters, Ming, 15, and Aoki, 12, from her marriage to ex Russell Simmons. (The two finalized their divorce in 2009, but split after eight years of marriage in 2006.)

Us confirmed the designer's pregnancy back in October, seven months after news broke that she'd secretly wed Leissner. "Tim has been family for a while now," Def Jam co-founder Russell tweeted at the time.